Pluribus Networks has doubled its office space in Palo Alto as the three-year-old startup continues to grow at a fast clip.

Pluribus, which makes software and hardware network virtualization for cloud data centers, is moving into 13,200 square feet at 2455 Faber Place, across from the Palo Alto Golf Course. The company was previously in about 6,500 square feet at 1808 Embarcadero Road.

Pluribus was co-founded by a pair of Sun Microsystems veterans, COO Robert Drost and tech chief officer Sunay Tripathi, along with engineering chief Ken Yang.According to CrunchBase, the company has raised a total of $88 million frominvestors including Menlo Ventures, Mohr Davidow, New Enterprise Associates and CBC Capital. In November, it hired Cisco veteran Kumar Srikantan as president and CEO.

The company doubled headcount in 2013, prompting the space search. Now it has some elbow room. Pluribus's new digs come with 10 conference rooms, a larger server room, a customer training center and an employee gym.

Pluribus also hired Jim Schneibel as vice president of worldwide sales. He is a former VP of enterprise sales, Americas, for Riverbed and has held key positions at Cisco and Bay Networks.

“We are pleased to have Jim join our growing team,” Srikantan said. “Our pipeline is growing, we already have our product in 16 countries, and, with Jim’s expertise and relationships in the networking and storage markets, we will be able to respond to the existing customer interest while expanding our sales pipeline.”